CFDを用いた室内ブラインドの熱伝達に関する研究 : 低レイノルズ数型k-ε二方程式モデルによる対流熱伝達率の予測

概要

論文の詳細を見る
This paper deals with prediction of heat transfer on internal blinds by Computational Fluid Dynamics(CFD). Tests were conducted to collect detailed data around blinds for the cooling and heating conditions. Test cases include those with different slat angles and those with and without a supply slit below the blinds. Convective heat was estimated from heat balance equations on the slats using radiative heat derived from measured surface temperatures and absorption factors. CFD calculations were made using a low-Reynolds k-ε turbulence model in order to predict convective heat and convective heat transfer coefficients on the blinds and the calculated results were compared with the test results. The results of the comparison demonstrate that calculated distributions of convective heat and convective heat transfer coefficients on the blinds correspond well with the test results for both the cooling and heating conditions. Convective and radiative heat flows and convective heat transfer coefficients on each surface were also analyzed in detail from a macroscopic point of view.
社団法人日本建築学会の論文
2006-12-30